Yamaha Control Unit Trim Switch

[boatmon345]

The trim switch on my Yamaha control unit at the helm started not working on "up" a year ago. A little "exercising" of it caused it to work again for the day. It has gotton worse; now the trim switch doesn't work at all and seems to be lose as if it is ready to fall out of the throttle lever.

What is the best way to repair this? - Can the throttle lever be taken apart to access the inner workings of the trim switch? Also, I am not finding diagrams of the control unit on the parts website so if anyone has a part numer I should replace I would appreciate it.

Thanks.

 

[boatmon345]

Re: Yamaha Control Unit Trim Switch

OK I found some documentation on this - it explains I must take apart the whole control unit to get to the trim switch. My control unit is located within the hull, and seemingly very difficult to access.

Can I not just unbolt the control handle and access the trim switch that way?

Someone please tell me I am not dreaming here....thank you.

 

[Ray Neudecker]

Re: Yamaha Control Unit Trim Switch

Not sure which control box you have, so my reply would be maybe. You will not have much wiring length to work with and I belive the wiring connections will be difficult to access with out disassembling the contorol box if you have to replace the switch. Normal cause is corrosion with in the switch itself.

 

[boatmon345]

Re: Yamaha Control Unit Trim Switch

Thanks Ray. My motor is a 1997 2 Stroke 150 if that makes a difference regarding control boxes.

Perhaps I can clip the existing wires and solder the new switch onto them.

Thank you.

 

[Captain Paul]

Re: Yamaha Control Unit Trim Switch

My 2001 VMax OX66 150 did the same thing. Down worked, Up pooped out. I took the control off, mine was pretty easy to do, took the throttle assembly apart (pretty easy as well) and could not see anything that would keep it from working. You'll see what I mean when you look at the switch (That is if it's similar in design). Then I tried it before I reassembled and, you guessed it, it worked. That was last year and I made through the end of the season and the start of this and then it started to act up like before. But it has since healed itself. Good Luck

 

[boatmon345]

Re: Yamaha Control Unit Trim Switch

Gents, I finally took a picture of my control unit:

Is it going to be a pain to change out the trim switch on this model control unit or no??? Can I just pull the handle off, snip & solder or is it going to be much more involved than that?
tks.

 

[boatmon345]

Re: Yamaha Control Unit Trim Switch

I completed the job tonight. For the sake of any future searches on this topic, I will advise that it was fairly "easy" to change the trim switch out. There was no need to disassemble the control box much less remove cables as I previously feared might be necessary.

I Pull the handle's rubber center out, remove two screws, and basically took the handle apart, clean it up, put the new trim switch in, put it back together with grease, hookup the wiring and it was done at leisure in about 1.5 hours.

The new switch (as well as the old switch) had a length of wire at least 2 feet which was plenty to reach under the console. Also an interesting observation: The trim switch came with a duplicate end, apparently to control a second engine if so equipt.

The biggest aggravation of the project was that the trim switch cost a whopping $55, which is utterly rediculous, I don't care how waterproof it is.